Rather, it suddenly wanted to stop thinking about them. The public was scared. Throughout all human history, the most horrifying of all ideas has been the idea of something which was as intelligent as a man, but wasn't human.The first sounds came at midnight, a plaintive keening from an unknown voice in the vastness of uncharted space. Within hours the whole world had heard the strange, unearthly music--and the panic had begun.Were the sounds a plea for help? From whom? From where? Or were they a command too terrible to think about? No one knew: And in billions of earth-bound minds the horror grew...For how could man, who had not yet claimed the moon, defy a challenge from the stars?And hours later, to the ears of a helpless world, the second message came. . .And Earth's days were numbered.

    And as they mentally charted the cosmos to find their way back to Earth, their own loves and hates were as startling as the worlds they encountered... Here is E. E. Smith's classic science fiction novel -- one of the greatest space operas of all time!

    Editor John W. Campbell, Jr., discovered and promoted great new writers such as A.E. van Vogt, whose novel Slan was one of the works of the era.Slan is the story of Jommy Cross, the orphan mutant outcast from a future society prejudiced against mutants, or slans. Throughout the forties and into the fifties, Slan was considered the single most important SF novel, the one great book that everyone had to read. Today it remains a monument to pulp SF adventure, filled with constant action and a cornucopia of ideas.This edition has a new introduction by Kevin J. Anderson.

    Lars Powderdry and Lilo Topchev are counterpart weapons fashion designers for a world divided into two factions - Wes-bloc and Peep-East. Since the Plowshare Protocols of 2002, their job has been to invent elaborate weapons that only seem massively lethal. But when alien satellites hostile to both sides appear in the sky, the two are brought together in the dire hope that they can create a weapon to save the world, a task made all the more difficult by Lars falling in love with Lilo even as he knows she's trying to kill him.

    It has been called "rollicking science-fiction adventure," "uproarious," "swashbuckling," and "sheer fun," and described by science-fiction critic Sam Moskowitz as "filled with engaging humor."

    When a celebrated science fiction writer takes to space on his first trip to Mars, he's sure to be in for some heckling from the spaceship crew. But Martin Gibson, man about space, takes it all in his stride. That is, until he lands on the red planet. Once there the intrepid author causes one problem after another as he stumbles upon Mars's most carefully hidden secrets and threatens the future of an entire planet!

    To get into space you either needed connections, a membership in the Guild, or a whole lot more money than Max, the son of a widowed, poor mother, was every going to have. What Max does have going for him are his uncle’s prized astrogation manuals—book on star navigation that Max literally commits to memory word for word, equation for equation. From the First Golden Age of Heinlein, this is the so-called juvenile (written, Heinlein always claims, just as much for adults) that started them all and made Heinlein a legend for multiple generations of readers.

    The organ banks are the centre of this world. To them the subservient colonists contribute living limbs, and from them the overlords obtain the vital parts that keep them alive.

    It is also a novel about equality and what happens when the hierarchical structures by which we arrange our daily lives disappear.

    He runs away, taking only a gem-eyed doll he calls Junky, & joins a carnival. Finding acceptance at last, Horty never dreams that Junky is more than a toy, nor does he realize that a threat far greater than his cruel father inhabits the carnival & has been searching for Horty longer than he has been alive.This book was also published as "The Synthetic Man".

    based on some real, honest, practical ethical thinking. It is an idea book.' - Groff Conklin in Galaxy Science FictionAsher Sutton has been lost in deepest space for twenty years. Suddenly arrives a warning from the future, that he will return- and that he must be killed. He is destined to write a book whose message may lead to the death of millions in centuries to come. For this reason Sutton is hounded by the sinister warring factions of the future who wish to influence or prevent the writing of this book he has not yet begun to write.Yet already a copy has been found in the burnt-out wreckage of a space-craft on Aldebaran XII.

    Then they began to reappear, not in Moscow or Nairobi or LA--but in 1970, 1981, even the nostalgic days of the roaring 2100's. A way to the past had been found & people were flocking thru it for a better life--no matter what peril they might pose to the threatened present. Earth in the late 25th Century is an unpleasant place for many. People are crowded into most available areas. Unemployment is rampant. A highly stratified society provides luxury & space for a few, while lower levels live crowded in tiny apartments. Into this situation comes a hope of escape–-escape into the past, before the world was crowded. The story follows several characters. 1st is Joe Quellen, a midlevel Secretariat of Crime bureaucrat with a secret African residence, reached by a private teleportation booth. He heads the investigation into unauthorized time travel. Another is Norman Pomrath, Joe's brother-in-law, an unemployed low-level worker. He swears he wouldn't abandon his wife & children if presented with a chance to become a hopper.

    In the twenty-third century pioneers have escaped the crowded earth for life in self-sustaining orbital colonies.  One of the colonies, Rotor, has broken away from the solar system to create its own renegade utopia around an unknown red star two light-years from Earth:  a star named Nemesis.  Now a fifteen-year-old Rotorian girl has learned of the dire threat that nemesis poses to Earth's people--but she is prevented from warning them.  Soon she will realize that Nemesis endangers Rotor as well.  And so it will be up to her alone to save both Earth and Rotor as--drawn inexorably by Nemesis, the death star--they hurtle toward certain disaster.

    Regularly appears on "Greatest science fiction" lists.

    The sole legacy of that war was the weapon that ended it: the death machines, the BERSERKERS. Guided by self-aware computers more intelligent than any human, these world-sized battlecraft carved a swath of death through the galaxy--until they arrived at the outskirts of the fledgling Empire of Man.These are the stories of the frail creatures who must meet this monstrous and implacable enemy--and who, by fighting it to a standstill, become the saviors of all living things.